What is poly Aluminium chloride (PAC)?

Poly Aluminium Chloride (PAC) is a highly efficient coagulant with the chemical formula [Al2(OH)nCl6-n]. It is widely used in water treatment processes to remove suspended solids, organic matter, and other contaminants. PAC is available in both liquid and powder forms and is known for its ability to perform effectively over a wide pH range.

What is poly aluminum chloride?

Poly Aluminium Chloride (PAC) is a highly efficient coagulant with the chemical formula [Al2(OH)nCl6-n]. It is widely used in water treatment processes to remove suspended solids, organic matter, and other contaminants.

What is a polyaluminium chloride?

PolyAC refers to polyaluminium chloride. 2c) = 3, with a >1.05. Some polyaluminium chlorides may not contain SO4 and conform to the formula [Al(OH)aClb]n, where (a b) = 3, with a >1.05 . Generally the basicity of these compounds used in the water treatment industry does not exceed 60% (see reference 1) or products.

How is polyaluminium chloride made?

In the production of polyaluminum chloride, liquid polyaluminum chloride is generally obtained first, and then the liquid product is dried to obtain a solid polyaluminum chloride product. There are also various drying methods derived. Spray drying polyaluminium chloride is the most common high performance PAC chemical on the market.

What are the chemical requirements of polyaluminium chloride?

The chemical requirements of both forms of polyaluminium chloride are given below. Powdered PolyAC shall contain water-soluble aluminium of not less than 14 ± 0.3% w/w as Al, or 30% w/w as Al2O3. Liquid PolyAC shall contain water-soluble aluminium of not less than 2.16% w/w as Al or 10% w/w as Al2O3.

How does poly Aluminium chloride work?

It works by destabilising and aggregating particles, making it easier to remove them through sedimentation or filtration. Poly Aluminium Chloride is preferred in many water treatment applications due to its quick reaction time, reduced sludge production, and the ability to operate efficiently in cold temperatures.